The very first parking barrier that doesn’t work with a ticket or chip, but with an alcohol test. You actually have to blow safe for it to open. If you drank too much alcohol the barrier stays closed and you can’t leave the parking lot.

The alcohol barrier made its first appearance at Belgium’s most famous club ‘Carré’, during the weekend of its 22nd anniversary.

Other clubs and organizers of music events will install an alcohol barrier too.

I’m sure there are ways to game this system — like “changing seats”, then changing back — but like similar stunts (The Drunken Valet and The $73,000 Bar Tab, the point isn’t so much to stop lots of individual drunk drivers as it is to make people more aware that drunk driving needs to be denormalized.